o-Benzenedisulfonimide has been used to efficiently catalyse the reaction between 2-aminothiophenol, 2-aminophenol, o-phenylenediamine and various ortho esters (28 examples; average yield 90%) or aldehydes (17 examples; average yield 72%) giving the corresponding benzofused azoles in excellent yields. Reaction conditions were very simple. In addition, other carboxylic acid derivatives have been tested and gave good results. The catalyst was easily recovered and reused.

The efficient o-benzenedisulfonimide catalysed synthesis of benzothiazoles, benzoxazoles and benzimidazoles

BARBERO, Margherita;CADAMURO, Silvano;DUGHERA, Stefano
2012-01-01

Abstract

o-Benzenedisulfonimide has been used to efficiently catalyse the reaction between 2-aminothiophenol, 2-aminophenol, o-phenylenediamine and various ortho esters (28 examples; average yield 90%) or aldehydes (17 examples; average yield 72%) giving the corresponding benzofused azoles in excellent yields. Reaction conditions were very simple. In addition, other carboxylic acid derivatives have been tested and gave good results. The catalyst was easily recovered and reused.
ix
262
279
http://www.arkat-usa.org/get-file/46325/
Green chemistry; homogeneous catalysis; heterocycles; recyclable catalyst; disulfonimide
Margherita Barbero; Silvano Cadamuro; Stefano Dughera
File in questo prodotto:
File Dimensione Formato  
Dughera Arkivoc.pdf

Accesso aperto

Tipo di file: PDF EDITORIALE
Dimensione 682.25 kB
Formato Adobe PDF
682.25 kB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2318/124425
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 12
social impact